subscribed threads - instant email notification not working?

[rich59]

I recently discovered I could get email notification of new posts to threads I had contributed to by changing my settings in "User CP". So I made the change and sat back. Nothing happened even though previous threads that I had added to (and were listed in my subscribed threads) had had posts added.

Did I do something wrong?

 

[Chris G]

Sounds like another glitch in the system to me.